<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<form>
  <input type="text" placeholder="请输入">
  <input type="password" id="" class="" name="" value="">

  <select>
    <option value="1">请选择</option>
    <option value="1">111</option>
    <option value="2">123</option>
  </select>

  <input type="radio" name="sex">男
  <input type="radio" name="sex">nv

  <input type="checkbox">sa
  <input type="checkbox">s

  <textarea></textarea>
</form>

</body>
</html>
